Experimental study of the radiation emitted by 180-GeV/c electrons and positrons volume-reflected in a bent crystal

The radiation emitted by 180-GeV/c volume-reflected electrons and positrons impinging on a bent crystal has been measured by the H8RD22 Collaboration on the H8 beamline at the CERN SPS. A dedicated spectrometer has been developed to measure high-energy photon spectra (up to ~100 GeV) under volume re...

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Detalles Bibliográficos
Autores principales: Scandale, Walter, Vomiero, A, Baricordi, S, Dalpiaz, P, Fiorini, M, Guidi, V, Mazzolari, A, Della Mea, G, Milan, R, Ambrosi, G, Zuccon, P, Bertucci, B, Bürger, W, Duranti, M, Cavoto, G, Santacesaria, R, Valente, P, Luci, C, Iacoangeli, F, Vallazza, E, Afonin, A G, Chesnokov, Yu A, Kotov, V I, Maisheev, V A, Yazynin, I A, Kovalenko, A D, Taratin, A M, Denisov, A S, Gavrikov, Y A, Ivanov, Yu M, Lapina, L P, Malyarenko, L G, Skorogobogatov, V V, Suvorov, V M, Vavilov, S A, Bolognini, D, Hasan, S, Mozzanica, A, Prest, M
Lenguaje:eng
Publicado: 2009
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevA.79.012903
http://cds.cern.ch/record/1190506
Descripción
Sumario:The radiation emitted by 180-GeV/c volume-reflected electrons and positrons impinging on a bent crystal has been measured by the H8RD22 Collaboration on the H8 beamline at the CERN SPS. A dedicated spectrometer has been developed to measure high-energy photon spectra (up to ~100 GeV) under volume reflection: photon and charged particle beams have been separated by a bending magnet and leptons were detected and tagged by microstrip silicon detectors and a Pb-scintillator sampling calorimeter. A comparison between the experimental and analytical data for the amorphous and volume-reflection cases is presented and the differences are discussed.

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